Author Topic: 250 crankcase breather  (Read 701 times)

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Offline Parsnips

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250 crankcase breather
« on: 08 Sep 2021 at 08:27 »
Can anyone assist me with identifying what is the correct fitting to mate with the holes on the top of the timing gear case in the photo?






[embed image. 08Sep21 -Doug, Admin]
« Last Edit: 08 Sep 2021 at 12:46 by Doug »

Offline Doug

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Re: 250 crankcase breather
« Reply #1 on: 08 Sep 2021 at 12:42 »

Offline Parsnips

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Re: 250 crankcase breather
« Reply #2 on: 08 Sep 2021 at 13:11 »
Many thanks Doug, it shouldn't be too difficult to make up something similar. You have also answered something else that has been puzzling me - how the primary covered is fixed is also shown in your photo.
Thanks again, Mark

Offline Tazmantic

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Re: 250 crankcase breather
« Reply #3 on: 13 Oct 2021 at 18:12 »
Nice to see another 250 owner, I made one for mine out of some steel square section and some copper pipe.

Offline Cliffy73

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Re: 250 crankcase breather
« Reply #4 on: 19 Nov 2021 at 19:27 »
Hi I have a spare 250 breather if you still require one.

Offline Parsnips

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Re: 250 crankcase breather
« Reply #5 on: 23 Nov 2021 at 17:27 »
Thanks but I managed to make one that does the job, I would be interested if you have any other 250 parts.

Offline Cliffy73

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Re: 250 crankcase breather
« Reply #6 on: 23 Nov 2021 at 18:56 »
I also have a 250 which I'm trying to source enough parts to build a spare engine. Finding a good crank is hard work.



Image converted to linked file - Dave,26Nov2021
« Last Edit: 25 Nov 2021 at 18:49 by Dave »

Offline EW-Ron

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Re: 250 crankcase breather
« Reply #7 on: 24 Nov 2021 at 19:43 »
So remind us, why would you need a 'spare' engine.
That one looks superb enough as is ?

I always think that when you find every example is completely knackered,
they obviously had good use out of it  !

Offline Cliffy73

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Re: 250 crankcase breather
« Reply #8 on: 24 Nov 2021 at 19:56 »
It's always nice to have a spare unit as it will be covering a fair few miles. They are not the best unit and are very prone to sieving up due to the thickness of the cylinders . I've looked at making it a larger capacity but it not that easy.

 

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